{"uid":"cap_emNWhvOBoBjulUjBrn8jr","slug":"zerion-wallet-simulation-signature-verifier-e4b1d576","name":"Zerion Wallet Simulation Signature Verifier","description":"Interpreted wallet data for more than 40 chains and Solana: portfolios, DeFi positions, PnL, transactions and NFTs. REST for apps, x402 pay-per-call for agents.","url":"https://api.zerion.io/v1/wallets/simulation/signature?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"domain":{"type":"object","description":"EIP-712 domain"},"address":{"type":"string","description":"Wallet address"},"message":{"type":"object","description":"EIP-712 message"}}},"responseSchema":{"type":"json","example":{"data":{"id":"<resource id>","type":"<resource type>","attributes":{}},"links":{"self":"https://api.zerion.io/v1/..."}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_rJd9vLl2nSA7cr8nVohnA","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates and processes EIP-712 typed data signatures for wallet simulation on the Zerion platform","exampleAgentPrompt":"Verify this EIP-712 typed data signature for wallet address 0xAbC123... on Zerion — here's the domain object and message payload I need validated before simulating the transaction.","exampleUseCases":[{"title":"Pre-simulation signature check","prompt":"Before I simulate this DeFi swap transaction, verify the EIP-712 signature for wallet 0x1234abcd... using this domain and message object to make sure it's valid on Zerion."},{"title":"Agent wallet authentication flow","prompt":"I need to authenticate my agent's wallet action by verifying the EIP-712 typed data signature — wallet is 0xDEAD...BEEF, here's the domain and message structure that needs validation."},{"title":"Smart contract interaction verification","prompt":"Can you validate this EIP-712 structured data signature from wallet 0xABC...789 against the provided domain and message before I proceed with the on-chain simulation on Zerion?"}],"resultDescription":"A JSON object containing a data field with the resource id, type, and attributes for the simulation signature result, plus a links.self URL pointing back to the Zerion API resource. Confirms whether the EIP-712 signature is valid and returns relevant simulation metadata.","failureModes":["Invalid or malformed EIP-712 domain object returns a 400 error","Wallet address not found or invalid format causes validation failure","Malformed EIP-712 message structure results in a parsing error","Payment not provided or insufficient USDC balance returns 402 Payment Required","Rate limiting or upstream node errors may cause transient 5xx failures"],"whenToPreferThis":"Use this endpoint when you need to validate EIP-712 typed data signatures specifically in the context of Zerion's wallet simulation feature, especially for agents using x402 pay-per-call access. Prefer this over generic signature validation tools when working within the Zerion DeFi ecosystem across 40+ chains including Solana, where you need structured simulation verification as part of a broader portfolio or transaction workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-24T00:36:41.998Z","isFirstParty":false,"canonicalSlug":"zerion-wallet-simulation-signature-verifier-e4b1d576"}